<!--
任务
1. 搭建基础的bootstrap页面
2. 根据课程所学或官方文档搭建基础的导航条结构
3. 注意表单的样式和右对齐所需要添加的样式（.navbar-right）
4. 根据课程所学或官方文档建立下拉菜单
5. 为下拉菜单设置标题和分割线
-->
<!DOCTYPE html>
<html lang="zh-cn">
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Hello World</title>
    <link rel="stylesheet" href="http://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
</head>
<body>
<nav class="navbar navbar-default navbar-fixed-top navbar-inverse">
    <div class="container">
        <!-- Brand and toggle get grouped for better mobile display -->
        <div class="navbar-header">
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
            </button>
            <a class="navbar-brand" href="#">某管理系统</a>
        </div>
        <!-- Collect the nav links, forms, and other content for toggling -->
        <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
            <ul class="nav navbar-nav">
                <li class="active"><a href="#">首页</a></li>
                <li class="dropdown">
                    <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">功能<span class="caret"></span></a>
                    <ul class="dropdown-menu">
                        <li class="dropdown-header">业务功能</li>
                        <li><a href="#">信息建立</a></li>
                        <li><a href="#">信息查询</a></li>
                        <li><a href="#">信息管理</a></li>
                        <li role="separator" class="divider"></li>
                        <li class="dropdown-header">系统功能</li>
                        <li><a href="#">设置</a></li>
                    </ul>
                </li>
                <li><a href="#">帮助</a></li>
            </ul>
            <form class="navbar-form navbar-left">
                <div class="form-group">
                    <input type="text" class="form-control" placeholder="用户名...">
                </div>
                <div class="form-group">
                    <input type="password" class="form-control" placeholder="密码...">
                </div>
                <button type="submit" class="btn btn-default">登录</button>
            </form>
        </div><!-- /.navbar-collapse -->
    </div><!-- /.container-fluid -->
</nav>
<script src="http://cdn.bootcss.com/jquery/1.11.1/jquery.min.js"></script>
<script src="http://cdn.bootcss.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
</body>
</html>